2045340240361 has 16 divisors (see below), whose sum is σ = 2334808539648. Its totient is φ = 1774769961600.

The previous prime is 2045340240347. The next prime is 2045340240373. The reversal of 2045340240361 is 1630420435402.

It is a cyclic number.

It is not a de Polignac number, because 2045340240361 - 2¹⁵ = 2045340207593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045340240341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41057746 + ... + 41107531.

It is an arithmetic number, because the mean of its divisors is an integer number (145925533728).

Almost surely, 2^{2045340240361} is an apocalyptic number.

It is an amenable number.

2045340240361 is a deficient number, since it is larger than the sum of its proper divisors (289468299287).

2045340240361 is a wasteful number, since it uses less digits than its factorization.

2045340240361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82165392.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 2045340240361 its reverse (1630420435402), we get a palindrome (3675760675763).

The spelling of 2045340240361 in words is "two trillion, forty-five billion, three hundred forty million, two hundred forty thousand, three hundred sixty-one".